Jackie-Jiang commented on issue #4500: Add file-evening to hadoop pre-process URL: https://github.com/apache/incubator-pinot/pull/4500#issuecomment-519305007 > others have benchmarked - MapReduce > When I use MapReduce job to iterate through all the records it completes in less than 2 minutes for about million records So for 1 billion records, we need to wait for 2000 minutes (more than 1 day) just for the count?
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